Is the carbon dioxide that humans exhale a public danger? Yes, according to the Environmental Protection Agency (EPA). The EPA has released an endangerment finding on carbon dioxide. The finding will allow the gas to be regulated under the Clean Air Act, something the Act was not intended to do when it was enacted over 30 years ago. Aggressive cap-and-trade measures are being debated on Capitol Hill and, if enacted, are rumored to rake in trillions of dollars for the federal government and raise the cost of living for Americans by thousands of dollars. Dan Simmons, the director of state...